Sash-center.



No. 659,!44. Patented Oct. 2, I900. G. W. GOLDEN.

SASH CENTER.

(Application filed Apr. 2, 1900.)

fn/veywor Q C I UNITED STATES PATENT OFFICE.

GEORGE W. GOLDEN, OE DETROIT, MICHIGAN.

SASH-CENTER.

SPECIFICATION forming part of Letters Patent N 0. 659,144. dated October 2, 1900.

Application filed April 2,1900. Serial No. 11.236. (Nomodeld To all whom it may concern.-

Be it known that I, GEORGE W. GOLDEN, a citizen of the United States, residing at Detroit, in .the county of Wayne and State of Michigan, have invented certain new and useful Improvements in Sash-Centers, of which the following is a specification, reference being had therein to the accompanying drawings.

My invention relates to sash-centers; and it is the object of the invention to obtain a construction which may be easily secured in position and by means of which the sash may beheld in different positions of adjustment.

The invention consists in the peculiar con struction and arrangement of parts, as hereinafter described and claimed.

In the drawings, Figure 1 is a perspective view of a portion of a window sash and frame detached, to which the members of my sash are secured. Fig. 2 is a horizontal section through the center, showing the sash in position in the frame.

A is a frame member, which is preferably in the form of a circle-plate of greater diameter than the thickness of the sash. This plate is provided with a-number of apertures a, with which screws may be' engaged for securing the member to the window-frame. Projecting centrally from the plate A is a pin B, preferably formed integral with the plate and forming the pivot for the sash member. Sleeved upon this pin B is a member 0, which I have shown in the form of a plate of substantially-rectangular form, but having its corners cut away, as at b. The pin B projects some distance beyond the plate 0, and upon the projecting portion thereof is sleeved a coiled spring D, one end of which bears against the plate 0, while the opposite end bears against a shoulder E near the end of the pin. The shoulder E is preferably formed by a washer, which is detachably secured in position by a'pin F. The member Ais preferably provided on its face adjacent to the member 0 with a series of radial grooves or notches c, which are formed with inclined faces, as shown in Fig. 1. The member 0 is preferably provided with corresponding ribs or projections (1, adapted to engage with the notches c.

G is the sash member, which comprises a plate 6, secured to the edge of the sash and preferably provided with an angle-flange f, adapted to be secured to the face of the sashrail. The plate e is provided with an aperture g, which is of a form corresponding to that of the plate 0, which latter is adapted to loosely fit in said aperture. The member G is also provided with apertures h and t' in the plates 2 and f, respectively, for receiving the screws which secure the member to the sash.

The parts being constructed as shown and described, to secure the center to the sash and frame the sash member G is first placed in proper position upon the rail of the sash and secured thereto by screws, as before described. Oentrally of the aperture 9 a recess is formed in the sash-rail, which is of sufficient size to receive the pin B, together with the spring D thereon. The member A, with the plate 0 secured thereto, is then placed in engagement with the member G, the plates 0 fitting within the recess 9 of the member G. When both centers are secured to the opposite rails of the sash, the latter is placed in position in the frame, and as the diameter of the member A is greater than the width of the sash two of the apertures a therein will be in a position where screws may be inserted for attaching the member to the frame. The sash is then turned into its horizontal position and screws are inserted in the remaining aperture a, so as to securely fasten the plate A to the frame. As the plate 0 exactly fits the aperture, it forms, in effect, a portion of the sash member G and the bearing upon the pivot b. At the same time it is free to slide in the aperture 9, so as to permit the lugs or ribs d to engage or disengage from the notches c, and thereby to allow the sash to turn on its pivot. The tension of the spring B holds the plate 0 against the plate A and the ribs din engagement with the notches 0. Thus the sash may be held in a number of positions of adjustment and can only be turned by exerting sufficient force to overcome the tension of the spring D.

What I claim as my invention is 1. A sash-center comprising a member consisting of a securing-plate having an integral centrallyprojecting pin, a holdingplate sleeved upon said pin and bearing against said securing-plate, a spring sleeved upon said pin and bearing against said holdingplate, an abutment for said spring secured to said pin and a securing member having a detachable engagement with said holding-plate preventing independent rotation thereof.

2. A sash-center, comprising a frame member consisting of a securing-plate having a centrally-projecting integral pin, a holdingplate sleeved upon said pin and having a notched engagement with said securing-plate, a spring sleeved upon said pin and bearing upon said holding-plate, and a collar on said pin forming an abutment for said spring; and a sash member comprising a securingplate recessed to receive said holding-plate and to hold the same from rotation for the purpose described.

In testimony whereof I affix my signature 30 in presence of two witnesses.

GEORGE WV. GOLDEN.

Witnesses:

L. J. WHITTEMORE, H. 0. SMITH. 

